Firearm



W. BARNAK Jan. 26, 1932.

FIREARM FiledMarch 19, 1931 2 Sheets-Sheet l Jan. 26, 1932. w BARNAK 1,843,061,

FIREARM Filed March 19, 1951 2 Sheets-Sheet 2 Patented dan. 25, 1932 WILLIAM BARNAK, or NANTIGOKE, rENNsYLvANIA FIREARM Application filed March 19, `1931. Serial No. 523,915.

This invention relates to firearms and to the application of so-called sling straps to the stock of the rearm, the said invention relating particularly te an automatically controlled means for housing the said strap and automatically adjusting the said strap as to length, thereby adapting it for use by persons of dierent statures and those havingdider- 'ent arm lengths.

It is well known that in firearms where ac- 'curacy of aim is desired, the slings or bracing straps employed are in ordinary practice detachably applied to the firearms so that there is liability of loss of the strap when it is removed.

Through the employment of this invention, the strap is held and practically concealed when not in use in a. storage chamber formed in a part of the firearm structure and preferably in the butt of the stock.

It is an object furthermore to provide means whereby the strap may be wound on itself in the said chamber, the said invention also including means for holding the strap at predetermined adjustments after a length of the strap has been drawn :from thechamber, the said retaining means being easily manipulated for securing the strap or releasing it. Y

A further object of the invention is to provide an adjusting device at the outer end of thestrap7 whereby it may be lengthened or shortened in av novel way and securely held in the different positions of adjustment; and the invention furthermore includes a means for anchoring the adjusting means to a part of the rearm structure so that it will not accidentally disengage and can only be disengaged by manipulation which correctly locates one part with relation to the other part.

The broad idea of the invention is susceptible of different physical embodiments, some of which are illustrated in the accompanying drawings forming part of this application; the said drawings serving` as illustration of means by which the invention can be Ycarried into practice without departing from i the spirit of the invention or the scope thereof as embraced in the accompanying claims.

In the drawings,-

near its outer end in any appropriate way, as

Figure 1 illustrates a view in side elevation of a firearm with a device embodying the invention applied thereto; l

rFigure 2 illustrates a sectional View on the line 2 2 of Fig. l;

Figure 3 illustrates a sectional view on the line 3 8 of Fig. 2;

Figure lillustrates an enlarged detail view of a connection at the outer end of the sling strap and the firearm;

Figure 5 illustrates a plan view of the con-v nection on the side reverse from that shown in Fig. et;

Figure 6 illustrates a sectional view on the line 6-6 of Fig. .5;

Figure 7 illustrates an of one end of the strap; v A

Figure 8 illustrates an enlarged detail view of the strap near its inner end; Y

Figure 9 illustrates an enlarged detail view cf the seat for the outer end of the strap Figure 10 illustrates a modified housing;

Figure llillustrates a sectional View of a further modification; and l Figure 12 is a section through the end of the Winding drum shaft and its support.

In these drawings, 15 denotes the stock of a firearm having a stud 16 anchored to it enlarged detail view by threading the said stud into the stock,and l? denotes a loop or eye carriedy by the stud. The eye is provided with a transversely disposed slot 18 extending from one side to the centre and the said slot is intended as a clearlance t0 permit the removal of a hook 19 therefrom; the said hook being ,carried by a plate 2O having a loop 21 that is slidable on the strap. c y

The plate has a transversely disposed groeve 22 between the hook and the loop which forms a seat for the T-head 23 of a link 24; that is pivotallyf connected to the strap by a plate 25; which plate is doubled on itself and secured to the strap by fastenings '26; such as rivets or the like.v As shown in Fig. 1 where the length of the strap `is to be adjusted at its outer end7 the member 20 having ythe hook is located in the looped portion of the strap, as shown at'27, and the hook butt of the gun, a chamber is formed inthe butt and a winding drum 29 for the strap is mounted therein. One form of the invenn tion consists of cheek pieces 30 and 31 arranged in the side of the stock and theyare'v` associated witlia housing in which the drum is rotatable. A shaft 32 is anchored to the cheek pieces. The shaft is preferably round between its ends and made angular in cross section between the side ofthe drum and the inner surfaces of the cheek pieces, the said angularly disposed portions of the sha-ft being fitted to supports of 'like configuration on the inner surfaces of the cheek pieces in order that the shaft will be prevented from rotating or from distortion (Fig. 12). The extremities of the shaft are round, although they may be otherwise shaped where they enter apertures 33 in the cheek pieces. After the housing has been applied to the stock, the usual end plate 34 will beV secured in place to retain the parts assembled.

The drum 29 is rotatable on the shaft and is held 'under tension 0f a spring 35 Which is so arranged as to turn the'drum in a direction to wind the strap thereon, it being shown that'the said spring is secured to the drum at 36 and to the shaft at 37. rIhe strap is secured to the drum by a pin 38, or in any appropriate manner, in order that the strap may be wound on the drum or pulled therefrom when it is to be used. An escutcheon plate 39 is fitted to the outer surface of the stock, but it has a tubular portion 4() extending inwardly to the chamber in order that the strap may pass through the said tubular portion as it is pulled out by hand or drawn into the chamber through the action of the spring.

A certain partiof the strap near its inner end may be provided with seatsl 41, such as holes. which are intended to receive pins 42 which will serve to hold the strap at rdifferent positions of adjustment, according to the 'length of strap for a certain user. Itis shown Ain the drawings that the pins 42 are carried by a plate 43 slidably applied to the stock, and the said plate is operated by means ex- .ternally of the stoclnsuch as a thumbpiece v 44, which is similarto the ordinary safety '..g catch used in firearms.

It is shown in the drawings that the escutcheon plate is recessed so that it forms a seat for the fixtures which are on the outer end of the strap, to which reference has heretofore been made.

vIn a modified construction, the stock may be provided With a cavity in its end into which a housing 45 maybe inserted, the said its fittings Will'be utilized and the drum will be mounted in the housing as it is mounted substantially as shown and heretofore described. Y As a further modification of the invention, a housing 49 may be employed which constitutes a continuation of the :gunstock 50. In this embodiment of the invention, the ordinary gunstoclr will be used, except that the outer end or butt'thereof will be removed for an appropriate length, the length of which would'be compensated by the size of thehousing and', of `course,-the said housing will be shaped so that it will simulate the ordinary butt kend of a gunstock.: In thev present illustration, the housing has an in.- ternal plate 5l'at its inner end located Va short distance from its inner end' in'order that the walls Yof the housing v.may extend beyond a portion of the outer end ofthe stock to produce a finished effect. In order Yto accomplish this,.the stock will preferably be cut away totl a depth equalling the thick-V -ness of the wall of the casing to produce a fitv similar to that shown in Fig. 1l.

The end of the stock may be provided with threaded bushings 52 anchored therein in o appropriatevway in order to engagescrews 53 extending'through the plate 51, itibeing understood that the said plate 51 is secured to i r -the inner surface ofthe housing by appropriate fastening means such as welding or Vthe like.

The housing 49 has at its outer end securing means for a butt plate 54 and, as here shown, lugs 55 are secured to theinner wall Vof the housing and screws 56 extending through the butt plate and the lugs serve to retain the parts assembled.

In this form of the invention, one Wall of 1 the housing is recessed as vat 57 andapertured as shown at 58 to permit the strap, heretofore described, to be applied to or removed from 'the drum 59 which, it is understood, is to be mounted on the wall of the Y chamber in substantially the same manner as that heretofore described with respect to the Ymounting of the 'drum on the cheek pieces, asin that form of the-invention shown in Fig. 1.

While I have referred tothe sling strap as such, it isto be understood that any v,flex- Vible device which has the function and purpose of such strap will be comprehended with. in the term adopted. Y

l claim:

l. ln a device for adjusting sling straps of firearms, a stock, a .stud attached thereto, said stud having an eye, a member having a hook adapted to engage the eye, said member having a loop, a strap on which the loop is slidable, a link having a T-head secured to the end of the strap, the said strap having apertures for the reception of the T-head of the link, whereby the end of the strap is secured to a portion of the strap between its ends, the said member having` the loop engaging the looped portion of the strap for anchoring it to the stud.

2. In a device for adjusting sling straps of firearms, a member having a. loop and a hook, a strap slidable through the loop, the said member also having a transversely disposed groove forming a seat, a link pivotally connected to the end of the strap and having a T-head adapted to lie in the groove of the member when assembled and to engage the strap between its ends for shortening the strap, and a member carried by the firearmengaging the hook for holding the strap at its outer end.

3. In a firearm having a stock, a. chamber at the butt end of the stock, a spring actuated drum mounted therein and having communication with the exterior of the stock` a stra-p movable through the said means of communication and wound on the drum.v and a latch in the chamber of the stock engaging the strap at different positions and holding said strap adjusted.

ing in its Wall, a strap extendable through A 4. In a firearm. a stock havinga chamber y therein, an opening in the stock communieating with the chamber, the said chamber being adapted to receive a sling strap. and a latch in the chamber engaging and holding the sling strap at different positions of adiustment.

5. In a firearm` a housing applied to the butt end of a. stock and forming an eXtension thereof. winding member rotatablv mounted therein. a strap extendable through the wall of the housing and applied to said winding device. and means for holding the strap at different positions of adiustment.

6. A fire arm having a stock with a. chamber formed therein and an opening in its wall communicating with the said chamber, a drum in the said chamber. a strap wound on the drum and projecting through the opening, a latch comprising a plate slidable in the chamber and having a pin adapted to proj ect across the opening in which the strap enters the chamber, said strap having apertures to receive the pin for adjustably retaining the strap at different positions.

7. ln a fire arm, a housing, means for detachably securing the housing to the butt end of the stock of the fire arm to form an eXtension thereof, said housing having an opennoV 

